If you are noticing uneven, cracked, or sinking concrete surfaces on your property, it is potentially an indication that you need concrete leveling. At The Real Seal, we offer tailored concrete leveling services to restore concrete slabs on your property. We utilize industry-standard repair techniques and high-quality materials to fix settling concrete surfaces, including patios, pool decks, sidewalks, garage floors, or driveways. Our solutions are durable, quick, and minimally invasive. Get started with us today for efficient concrete leveling solutions. Give us a call to schedule a free inspection.

What Is Concrete Leveling?

The area of Chicago Illinois is subject to many different weather-related issues. These include periods of heavy rain and the freeze/thaw cycle that may happen many times during the winter. Either could affect the soil and cause concrete to sink.

Concrete leveling is the process that raises a concrete slab, such as a driveway, sidewalk, or stairs up to its original level. It is done using injecting polyurethane foam under the concrete, a process known as polyjacking.

As the polyurethane foam expands, it compresses the soil and raises the slab. It sets within a few minutes to full strength, so you can begin walking, driving, and otherwise using the slab as before.

Concrete leveling in Chicago, IL

Does Concrete Leveling Work?

Concrete leveling has been done in some form or another for decades. At The Real Seal, we use the most up-to-date and reliable method of slab jacking, polyurethane foam (polyjacking).

As a short answer, Yes! Concrete leveling works. As long as the concrete is in good condition, it can often be raised to its original level without causing any damage to the slab. You can then begin using it within 15 minutes.

You may hear of other concrete leveling options, including mudjacking and replacing the slab but neither of those comes close to polyjacking. Since Polyurethane foam began being used decades ago, it quickly became the go-to option for concrete leveling because of its ability to lift concrete and hold it in place permanently.

When Do You Need Concrete Leveling?

Having a level concrete surface on your driveways, walkways, and patios is more than just a matter of aesthetics. If the slab has sunk or settled, it can cause tripping hazards or can even permanently damage the slab by cracking it.

An uneven surface is the most common reason why you might need concrete leveling but it is not the only reason. If you have water in the basement, there may be benefits to leveling the concrete slab as well.

Any time there is an issue with the soil under the slab, the leveling process will be of benefit. Polyurethane foam fills the voids and, if the slab has settled, it will lift it back into place.

Concrete Leveling Methods

The Real Seal uses polyjacking as our form of slabjacking. There are other methods, and they each have their place, but typically, you would compare mudjacking and polyjacking. Here are the differences to be aware of.

Mudjacking

Mudjacking has been in use for over 100 years and some companies still offer this service. It may still have its place, but it is an outdated option that has since been replaced with polyjacking.

The process of mud jacking starts with drilling holes in the concrete. These holes are larger than what is drilled for polyjacking. They are used for injecting the slurry of soil, sand, and concrete under the slab. The force of the injection pushes the mud underneath the surface and lifts the concrete.

Mudjacking can lift concrete but it is not very long-lasting. There are also possible problems associated with it, as it is harder to control the lift and requires larger holes. It may require a day before any heavy use of the slab is considered.

Polyjacking

The top choice for concrete lifting is polyjacking. It uses polyurethane foam to lift the slab back to an acceptable level. The polyurethane is a 2-part mixture that is injected below the slab through small, dime-sized holes.

Once the liquid is in the void below the concrete, it expands 30-50 times its liquid size. As it does so, it fills the void and compresses the soil, while at the same time, lifting the concrete.

Polyurethane foam has a long lifespan and is both lightweight and non-toxic. It also has the benefit of being able to be used within minutes after the work is done.

We Offer Concrete Leveling Using Polyjacking Near You in Chicago, Illinois

You can count on The Real Seal Basement Waterproofing and Foundation Repair to provide the best concrete leveling services in Chicago and the surrounding area. We have years of experience with a wide range of repairs that affect your home, including foundation stabilization, concrete crack repair, and polyjacking.

Simply fill out the form on our website and one of our industry experts will get back to you promptly. Thousands of Illinois residents have trusted us with their concrete leveling needs. We look forward to taking care of your needs as well.

Types of Concrete Leveling The Real Seal Offer

Patios

Driveways

Pool Decks

Sidewalks

Foundations

Concrete Steps

Porches

Garage floors

The Real Seal’s Polyjacking Process in Chicago

Polyjacking is a relatively straightforward process that involves injecting polyurethane foam under a slab and forcing it to rise as the foam expands. The following are the steps associated with the process.

1. Drill Holes:

Dime-sized holes are drilled through the concrete to allow access for the polyurethane to be injected into the void below the slab.

2. Crack Repair (Optional):

If the concrete has cracked and settled, we may need to grind the concrete at the crack so it doesn’t keep the slab from lifting effectively.

3. Manual Lifting (Optional):

A sidewalk jack may be used in some cases to get the lift started and to create a void where the polyurethane is injected.

4. Foam Injection:

An injection port is inserted into the hole we drilled in the concrete. We then use an injection foam gun to inject the liquid polyurethane mixture into the void below the slab.

5. Lift:

The polyurethane foam begins to expand rapidly. As it does, it fills the void below the concrete and begins lifting the slab. The foam expands up to 50 times its original volume. This process is done by an experienced technician so the slab is lifted into place precisely.

6. Fill:

The small holes used for injecting the polyurethane foam are filled. We do what we can to get a good match so they practically disappear.

7. Clean Up:

Any additional polyurethane foam is scraped away. We then clean up the area so that, after we are gone, you are left with a level slab and it looks like we were never there.

Benefits of Polyjacking​

Polyjacking offers many benefits compared to other forms of concrete lifting or repair, including mudjacking or replacing the slab. Those benefits also stand on their own. They include:

Cost

One of the main reasons people consider polyjacking is because of the high cost associated with removing the old slab and pouring a new one.

Hole Size

Mudjacking uses a larger hole, which may be 2" in diameter. Polyjacking is done through a small hole with a tapered injection port. The hole size typically used for polyjacking is 5/8".

Weight

Polyurethane foam only weighs about 2 pounds per cubic foot, yet it has the ability to hold up significant weight.

Environment

Polyurethane is non-toxic. Once it hardens in place, it will not have a negative impact on the environment.

Time

Polyurethane foam can be injected and within 15 minutes, the slab can be used normally.

Why Choose Us for Concrete Leveling?

With years of reliable home improvement services, we have established ourselves as trusted concrete leveling repair professionals. Here are some of the benefits our services provide: 

  • Certified, well-trained experts: Our certified professionals have undergone extensive training, specializing in various basement and foundation repair solutions. Through years of service, they have honed their expertise and have handled a variety of concrete leveling projects with excellence.
  • Industry-leading solutions: We keep up with the latest upgrades in the industry and update our repair solutions accordingly, ensuring effective and lasting results.
  • Efficient project completion: We carefully plan every step of each project, ensuring maximum efficiency and timely project completion.
  • Free estimate: Our free inspection service is designed to help our clients get an overview of the repair project by providing them with a free customized quote.

Contact Us for Concrete Leveling in Chicago, IL

Leaving sinking or uneven concrete surfaces unaddressed may cause tripping hazards. The Real Seal offers personalized concrete leveling solutions to fix any damaged concrete surfaces on your property. Get started with us by scheduling a free on-site evaluation. Our team will thoroughly assess your property, offer you an accurate estimate, and recommend appropriate repair solutions.

Frequently Asked Questions

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When should you get concrete leveling services?

You should consider getting concrete leveling services if the concrete surfaces on your property show the following signs of damage:

  • Sinking
  • Water pooling on concrete surfaces
  • Voids forming under concrete slabs 
  • Uneven or cracked concrete surfaces
Question Mark

What is the best concrete leveling method?

Polyjacking is the most efficient concrete leveling method. This repair method lifts the concrete slab quickly with minimum disruption. 

Question Mark

What is the cost of concrete leveling in Chicago, IL?

The cost of concrete leveling in Chicago depends on the type of concrete leveling service you need and the scope of the project. For an accurate quote, schedule a free inspection.

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Is concrete leveling covered by insurance in Chicago, IL?

Concrete leveling may be covered by insurance depending on the cause of any damage. Check with your insurance service provider to learn more about the extent of your coverage.

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Does The Real Seal provide a warranty on concrete leveling services?

Yes, we provide a 10-year warranty on every concrete leveling project. This is a longer warranty than most companies offer. 

Customer Reviews

The Real Seal team did a phenomenal job on our project. We needed to lower our basement floor by a couple feet in order to put in a golf simulator. The crew worked tirelessly and went out of their way to protect our home from dust and debris from the process. They were very transparent and communicative, and patient will any questions that I had along the way. I give them my highest recommendation.
Real Seal did an outstanding job for us in replacing our window wells. Great communication and excellent work. We would definitely work with Real Seal again and we very highly recommend them.
Great experience with Real Seal. We moved into a remodel where a former contractor (not sure which company) sealed up a basement leak incorrectly leading to water in our basement months after moving in. Real Seal promptly came out to inspect and consult, quoted a fair price, and then repaired the crack; educating me along the way about what went wrong and how they would repair to ensure there would be no more water. I'm so thankful for their service and lifetime warranty.
Great to work with and clear in explaining how their process works. No pressure on the estimate. Arrived on time, answered our questions and were complete professionals. I would recommend this company. 💯
Sal and Omar arrived on-time and did an excellent job repairing the cracks in the foundation and installing the new piping for the crawlspace sump pump. Sal completed the exterior work in the dark nd cold and took the extra time to make sure it was just right ! The whole process from quote to completed job was what was promised.
Fantastic organization to do business with. The process was professionally handled from the initial call to the end of project. They quickly identified the issue, provided a solution, and quote in the same day. Our yard looks like it was never touched and there was a ton of digging performed. We went through the heavy rains the other day and no issues. Thank you to the entire team!
Fantastic service by Omar and Rob! Would definitely use The Real Seal again!
Our foundation had developed cracks, and the corner of our house was sinking by nearly 3/4 of an inch. After getting multiple quotes, Real Seal offered a competitive price and appeared to be highly knowledgeable. Their warranty was also the best among all the vendors. They scheduled the work for six weeks later and started on time. The project was set for three days, and they completed everything as planned. The crew was professional, respectful, and did an excellent job cleaning up the area afterward. Highly recommend them!
Quality materials, trained and experienced staff that made us feel confident thoroughly the process.... no new decisions were made until we has all options and safety concerns discussed... highly recommend The Real Seal!!!
We had a fantastic experience with Real Seal Basement Waterproofing & Foundation Repair! Rob, the structural engineer, came out first to inspect and assess the damage. He was extremely thorough, professional, and took the time to explain what he was seeing, which helped us feel confident in the next steps.

George, our technician, did an outstanding job with the repair. During the process, he discovered a 2x4 that had been bolted directly into the foundation wall—a possible cause of the cracking we were seeing. He explained how that kind of pressure can lead to long-term structural issues, which we never would have realized on our own. George not only fixed the problem, but also walked me through the repair process and what was being done to ensure the wall would be properly supported going forward.

Both Rob and George were professional, knowledgeable, and respectful throughout. It’s rare to find a company where both the inspection and the repair sides are this strong. I’d highly recommend Real Seal to anyone needing foundation repair or basement waterproofing. Their team brings both skill and great communication—exactly what you want for something as important as your home’s foundation.
Real Seal was professional throughout. Communication was clear, and they helped us seal cracks in our basement foundation while also offering helpful guidance on a few home improvements. Initially, their quote was a bit on the higher side, but they worked with us to resolve the issue at a very fair price. We’d definitely use them again.
Jesus and his team did amazing job to install french drain system in our basement. They were fast, efficient, organized and super clean at the site. Everyone in the company is great , very knowledgeable at their job. On top of that their price is very reasonable, highly recommend!
Very pleased with my experience. Hired to install foundation piers.
Real Seal came out and was able to provide a clear, well-thought out plan to address water issues in the basement. The installation of the drain tile system and sump pump was quick, the crew was great, and the system is running very well. Really wonderful job--thanks!
Great Company with excellent employees. Highly recommend !!!!!
I had such a great experience with the real seal. David and Susan were awesome and answered all of my questions when I started the process. The crew that came to install the liner was also amazing they were very respectful, kind, and helpful with any questions that I had. They came the day after a snow storm and the temps dropping and still got everything done.
Promot, efficient, knowledgeable, and reasonably priced. Would hire again.
Great work, super friendly service and very communicative.
Great communication with their team and excellent quality of work. Their specialist went the extra mile on site which we all appreciated. Would definitely rely on them again.
George Ledezma is a very hard worker! He pays attention to details, make sure the jobs are completed to customer satisfaction and is a leader. He deserves a promotion for his loyalty towards Real Seal.
the most dependable and thorough waterproofing company in the Chicagoland area. Been using them since we moved into our house in 2011. Austin and his team consistently crush it.
I can't recommend this company enough. Theirs is by far the best customer service I've ever experienced from any company regardless of the business they're in. There are a lot of choices for basement waterproofing, especially in Chicagoland, but Real Seal is a standout.
The crawlspace to basement conversion was great! The crew clearly knew what they were doing and paid close attention to detail. For such a large project, we had a lot of anxiety going in, but Real Seal went above and beyond to make sure the project went smoothly. Every contractor and inspector who stopped by was also impressed by their work!

If you have a crawlspace want to add square footage to your home (or have a nice new spot to wait out tornados), I highly recommend reaching out to Real Seal about a conversion.
I'm so grateful that I got The Real Seal to solve my basement water issues. They sealed several cracks and did drainage work outside to get the water away from my foundation. The guys that did the work were very friendly and knowledgeable.
I never used them personally but they respond to all the comments on their website and offer whatever help they can which is very helpful for DIYer’s like me. If they were in Philadelphia I would undoubtedly use them. Great people.
Great job RealSeal. This is my second sidewalk leveling project. Both have been performed very well.
Real seal has been very helpful with all the projects that I had completed this summer. I had foundation cracks repaired, two basement windows and wells replaced at a reasonable price. The work was completed as promised and area cleaned of the debris. They also referred me to a contractor who completed the foam spray for insulation in my crawl space who completed the work as I requested.
Did a great job of explaining whats needed, what's less important, and happy with results so far.
Used real seal for 2 foundation cracks. From the estimate to having the repair done was great. Very fast and efficient. I was called to schedule and I lucked out did repair same day. Now that's Service.
This sump and battery backup are a great value. It was purchased for my mom which lives 1 hour away. I like the feature that if there is a failure ( highly unlikely ) it will notify my phone.
I had some previous work done by a waterproofing company. I haven’t had any issues with it other than feeling like a I paid too much. When I had another basement crack that needed to be repaired, my contractor recommended Real Seal. I am glad he did and I wish I would have known about them sooner. The communication from the time I made the appointment until the work was complete was spectacular. The fees they charge for work is black and white and incredibly reasonable. I’ve hired them for a third job and would recommend them to anyone in need of their services. I’ve also gotten to know the owner of this outfit and some of the other employees and I couldn’t be more excited to see where a company goes in the future. Hats off to Austin and his whole crew!
Jim was very friendly and knowledgeable during the initial visit. He made sure to explain everything he was seeing and what he would recommend and why. He even looked into ways to reduce the financial burden a project like this would be. When it came time for the installation, Tomas and his crew were great and made sure the project was completed correctly. When they were done, they went above and beyond cleaning up and making things look the best they could. I hope no one needs to fix the issues our foundation had, but if they do Real Seal is highly recommended!!!
Excellence all around. Professional, great pricing and awesome work

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